Paper Title:
Residual Deformation Measurement of Laser Weldment Using the Laser Interferometry
  Abstract

In this paper, the residual deformation induced in laser welding processing was studied by using the moiré interferometry and a novel high-temperature specimen grating technology. The experimental results indicate that the heat-affected zone of laser welding is a narrow strip. There exists great residual strain gradient in the heat-affected zone, especially great residual shear strain gradient. It implies that great residual stress and stress gradient exist near the welded seam. The relationship between the size of the heat-affected zone and the changes of the technology parameters were discussed in the experiments, which can supply some reliable experimental data for optimizing processing technology.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
63-66
DOI
10.4028/www.scientific.net/KEM.326-328.63
Citation
Z. W. Liu, D. Q. Zou, W. Z. Chen, W. N. Wang, Y. Fang, "Residual Deformation Measurement of Laser Weldment Using the Laser Interferometry", Key Engineering Materials, Vols. 326-328, pp. 63-66, 2006
Online since
December 2006
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$32.00
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